Dust remover for scrap bunch cigar machines



Nov. 20, 1934. .1, P. DURN'ING DUST REMOVER FOR SCRAP BUNCH CIGAR MACHINES Filed April 14, 1933 m INVENTOR (10%" TORNEY Patented Nov. 20, 1934 UNITED STATES" clerics Application April 14, 1933, Serial N0. 666,206 I 7 16 Claims.

This invention relates to a novel attachment for scrap bunch cigar machines and the like, wherein it is desirable to remove dust or small particles from the material before it is transferred into subsequent operating units of the machine. One of the main objects of the invention, therefore, is the production of a novel attachment for removing dust.

The invention, as disclosed herein, has particular application to scrap bunch cigar machines such as described in the copending application S. N. 629,966, filed August 22, 1932, and the accompanying drawing, therefore illustrates it in combination with the above mentioned machine;

but it will be understood that the invention is not limited to scrap bunch machines.

The scrap tobacco, or other material, is delivered into a magazine or hopper which fits snugly into a saddle or base. The latter is essentially an air-jacket, the air-ducts of which communicate with openings in the bottom portion of the hopper. The openings in the hopper are provided with perforated plates or, as shown in the drawing, with wire mesh of suitable gauge.

A source of suction is connected tothe airjacket whereby, as the material is being intermittently agitated in the'hoppendust and small particles of the material are exhausted. Accordingly, a further object of the invention is the provision of a hopper having a suction cleaning device. I

Below the base of the hopper is located an oscillating transfer drum with a reciprocating pan,

which receives a charge of tobacco from the hopper and transfers it to a measuring chamber below. However, the pan in the present invention is provided with a falsebottom, either perforated or covered. with wire-mesh of suitable gauge. The bottom of the pan is connected-with the suction device through an air duct in the spider of the transfer drum, the bottom of the pan adjacent the air-duct being sloped to register therewith. The hub of the spider is loosely mounted on a tube also connected to the source of suction and provided with a circumferential slot registering with the air-duct in the spider. It is thus possible to so arrange the slope of the bottom of the pan that the air-duct will be entirely out off or left fully open at the time the pan is in charging position in the hopper. However, if the air-duct has been cut off while the pan is being charged, it will gradually open up as the pan recedes into the transfer drum and will remain fully open until the drum has completed about three-quarters of its oscillation, whereupon its" outlet will gradually move out of registry withthe slot in the tube and cutoff theconnection to the source of suction as the pan'approaches the position for dumping the charge.

The connections to the source of suction can be so arranged that'either the hopper or the pan can be connected independently or-they may be both 'ope'rating at the same time.

In the accompanying-drawing which forms a part of this specificatiom and in which like characters of reference indicate the same or like parts: I I

I Fig. 1 is a sectional end'elevation showing the dust remover as applied to a scrap' bunch cigar machine of the type disclosed in the copending application referred to above;

Fig. 2 is a sectional side elevation of same; and

Fig. 3 is a'detail sectional viewon line 33 of Fig. 1. i

In carrying the invention intoefi'ect there is 76 provided a hopper adapted to'contain amass of scrap tobacco, means for agitating'the tobacco in said hopper, and suction means for exhausting the dust and loose particles stirred up fromthe tobacco in said hopper by said agitating means. 80- In the best forms of construction contemplated there is also provided 'mechanism for removing a. charge of tobacco from 'said hopper, and suction means for exhausting dust and loose particles from said mechanism. These various means'and parts may be widely varied in construction for the specific device selected to illustrate the invention is but one of many possible concrete embodiments of the same; The invention, therefore, is not to be restricted to the specific construction shown and described. I

Referring to Figs. land 2, the side frames 11 support the saddle or base 12 of the hopper 16. The side frames 11 are also providedw'lth bearings for shaft 13 on which is mounted the transfer drum-l5.

The scrap tobacco T in hopper 16-is kept in loose condition by-agitating rods 17 mounted on shaft l8,'supported by bearings-in the hopper, and intermittently driven'from shaft 13 by means of sprockets 19 and 20 and chain'21', the sprocket 19 being connected to shaft13 by a suitable device, such as a ball clutch or a pawl and ratchet, so as to turn in one direction only. The shaft 13 is alternately turned one-half revolution forward. and back by means of a gear 22 attached to transfer drum 15 and engaging with a rack 23 attached to a cam lever operated from a cam mounted on the main shaft, not shown, which controls all motions imparted to-thevarious' units.

'7 provided with, reticulated syn- The shaft 28 also has a crank 27a fixed thereon outside of drum 15, and connected by rod 27b to, a

cam lever operated from\a cam mounted on the main shaft (not shown). h v a. I

When the drum 15 carries the pan into D051: tion underneath the mouth o f the hopper 1 6, lever 27, by means of motion-imparted from the cam on the main shaft through a cam lever rod 27b and crank 27a, raises the pan 29 into the hopper to fill it with a charge of= tobacco, and then lowers it back into the drum 15. Afterthe pan is, completely housed in the drum, rack 23, by means f ear t m thq dawn. Wash enahsli Qt a, r ro i so that, t e rah how s r ve sadi Posi on .9; Qepesita the owerqv hhls the drum-housing 91. ma to diamathe ch ts?- The bot om; when athq ne .65,- s nrqricl w th Op nings lath. lth. L6 a d. lficias hown F s -w l llfll: 2- I ass. or s are cpvst d with Perforated plates itire of; ui able u e, a d re i ter w h. masc ts 2 an 2 ormed in the. s sidlc o hate and nter om:- mu qs hs w he cn othe to Proy d a s n le outlet. A suction device of conventional Q0517. tr ct om, not, s;- tohhsqtsd o a d outl throu h. a suctioa ra ns ta Q ir-o v ustand;

.- mall; test c e wh sh; harsh tin -d n. the. hopper by agitatingrods 17,.

, Aftct th ran as has reset-vied; s cha e' an st ts tov ece sih a thc-rtta stet ,dmm, i slo ing bottom portion, underneath the perforated a se. bo tom, 8a. which. u ports? the char sna uallx toms, into tul resists w th the a r: duct an drum spi er 5 nd r ma ns in. this position dur ng thsoscil ation o f, rans: e rum, T e. ax c-ductin SQidfib 1: c nnected;

a suqt on, pipe, ea he the c ion: der ce through. a. hol ow statiohor tube av n a r-l. cum e rent al lot. commun cat ng.- th aid. air-1 duc whereby: a alisi n 1 3 1 la and ider tur thc c r umferential) lot. tube rad: ual y. bein shut 0 tbc o e he. an ha she t he. char e of tobacco nto, d schar n position,

The ha e n. the; an; s, thus, sub e ted o thg action, o the suction, device) durin t at creat s. part of t e ose lation of: the trans r dn unt, a d,

} further removal. Qfidust; and small; patt c es will result. By placing valves in thelsllctimpipethelhopper or helpan ca r e ut o rasdesired;w Whatis laimed s: l

1:. The; combination: wi h? hopper adantedto ontain, av mass, o sc a-p. to ac o. of; means 0 agitating the tobacco in said hopper and suction means on xhaustipa he d t; ands-smal pa ticl sti red up f om/ he tobacco n said.- ho n r: b aid a tatinslmeana saidt s c i n,.m .ns, n 1udi-,

; m a addl nto which aid hopper; s. fitted.

aid; saddleavin ,a,.plura ty f air usts hteb, ommu icat ngwith. eac her; t moi d? a singleoutlet, and said hopper? having openings registering, with the entrances; to said, ducts and; screens, covering, said openings.

2; Theicombination; withayhopper adapted to; contain a; mass, of; scrap tobacco; f: e hanism; for, removing. a chargelof; tobacco, fr m, aidhonr. per, and. suction, meansifqri cxhaustinsi. ustw andremoving a charge of tobacco from said hopper.

3. The combination with a hopper adapted to contain a mass of scrap tobacco, of mechanism for removing a charge of tobacco from said hopper, and suction means for exhausting dust and. loose particles from said mechanism while it is removing a charge of tobacco from said hopper, said means also operating to exhaust dust and loose particles from the mass of tobacco in said "hopper.

14.,The'l combination with a hopper adapted to contain a mass of scrap tobacco, of mechanism for removing a charge of tobacco from said hopper, and, Suction, means for exhausting dust and loose particles, from said mechanism while it is removing a charge of tobacco from said hopper, said mechanism including a pan having a reticulated ialsebottom, and a device for inserting the pan into said hopper to receive a charge of tobacca on. sa d; a so bo om andthe retrac i the an from; he ho pe th. he cha g n h ialse ot oc nd: sa d suction. me ns commun atin w h he in erior o aid p ow e als b ttom o the dust an lo se part cl hr u h th alse o tomg 5- Th c mbina ion w th a h pp r. ad pt d to contain a mass of 80 3 419 tobacco, of 'anoscillata:v e rahs t d m und r y n aid hophen m anism nte itte oscil ati g a d drum, a sane s dabl mounttd; Said rum; m an 09-- erating; to projec said up, through the outlet of saidhopper to fill it with acharge of tobacco, and-thenretract it into said drum with the charge, a d u on, means to remo n d an 1 8 particles frornthemass o -i tobacco said; hopper xis h cha ge of toba o said: an s S tior-i means also operating to retain the charge nstii h qkst iir n thefoscillationl qf said drum,

6,, he ombinati n-with a hopper adahtedito con a a mas t t p o acco f n ci le; ansfe drumunder x h s d; ho' h a whe ahis a or int mitt flr s illat ng, said, rum, a pan slidably. mounted, in; said, drum means op tat ng: to oistt a d n 1? th u h h letof said hopper to fill; it with a charge of tobacco; and; then retract it into said drum with, the

said v drum and; including a saddle into which said hopper 'is'ffitted, said; saddle having a plurality of air-ducts intercommunicating, with each other to provide a single, outlet,, and said. hopper having openings registering-with, the entrancesto said: ucts and Rl'oh dfi aw ret c late s wq srihs; saidlqhshinsst l 'llhstombihati ith a hoppe adapt o ontain! a mas of at n-1 9mm n: scil tes l t a s etdtmn un e t rias d er R slidablymounted in said, drum and provided witha e.ti i tite .v alse. ott daa si-v Support a up, through the outlet of-{said hopper, to fill it wit a. har e; at obacc a -t e retracting i nto aiddmmrwith hs shars t d-s t on m or r m nsa ust. n h t 1 Pa icles r massf: obac nusa stho m rra d. e har e t QbfiQPQs n; said: ant sa t; d um having; a, spider, on; cs ckthsr q ,a dmaidme nsincludin an a huct ii; aith sh dcr qmm n tat n a with; the i..,.te:io .-Qf ais l ani. 211M131 ub o w i h i ni e s: 1mm i. h -duQt n i ar e o bac rme nsfp z pr jecting;- a d pant.

spider communicating with the interior of said tube.

8. The combination with an oscillatable transfer drum, of a pan slidably mounted in said drum and adapted to receive a charge of tobacco, means for projecting said pan out from said drum to receive a charge of tobacco and then retracting it into the drum with the charge, and suction means for removing dust and loose particles from the charge of tobacco in the pan while the latter is retracting into the drum.

9. The combination with an oscillatable transfer drum, of a pan slidably mounted in said drum and provided with a reticulated false bottom adapted to support a charge of tobacco, means for projecting said pan out from said drum to receive a charge of tobacco on the false bottom, and then retracting it into the drum with the charge, and suction means communicating with the interior of the pan below its false bottom to suck dust and loose particles through the false bottom.

10. The combination with an oscillatable transfer drum, of a pan slidably mounted in said drum and provided with a reticulated false bottom adapted to support a charge of tobacco, means for projecting said pan out from said drum to receive a charge of tobacco on the false bottom, and then retracting it into the drum with the charge, and suction means communicating with the interior of the pan below its false bottom to suck dust and loose particles through the false bottom, said drum having a spider on one end thereof, and said means including a tube on which said spider is loosely mounted, and an air-duct in said spider communicating with the interior of said pan and tube.

11. The combination with an oscillatable transfer drum, of a pan slidably mounted in said drum and provided with a reticulated false bottom adapted to support a charge of tobacco, means for projecting said pan out from said drum to receive a charge of tobacco on the false bottom, and then retracting it into the drum with the charge, and suction means communicating with the interior of the pan below its false bottom to suck dust and loose particles through the false bottom, said drum having a spider on one end thereof, and said means including a tube on which said spider is loosely mounted, and an air-duct in said spider communicating with the interior of said pan and tube, said pan being arranged to close the entrance to said air-duct when it is projected out from the transfer drum.

12. The combination with an oscillatable transfer drum, of a pan slidably mounted in said drum and provided with a reticulated false bottom adapted to support a charge of tobacco, means for projecting said pan out from said drum to receive a charge of tobacco on the false bottom, and then retracting it into the drum with the charge, and suction means communicating with the interior of the pan below its false bottom to suck dust and loose particles through the false bottom, said drum having a spider on one end thereof, and said means including a tube on which said spider is loosely mounted, and an air-duct in said spider communicating with the interior of said pan and tube, said air-duct being arranged to communicate with the interior of said pan when the latter is projected out from said drum.

13. The combination with an oscillatable trans-. fer drum, of a pan slidably mounted in said drum and adapted to receive a charge of tobacco, and suction means communicating with the interior of said pan for exhausting dust and loose particles from the charge of tobacco in the pan.

14. The combination with an oscillatable transfer drum, of a pan slidably mounted in said drum and provided with a reticulated false bottom, and suction means communicating with the interior of the pan below the false bottom to suck dust and loose particles through the false bottom. 1 5

15. The combination with an oscillatable transfer drum, of a pan slidably mounted in said drum and provided with a reticulated false bottom, and suction means communicating with the interior of the pan below the false bottom to suck dust 11 and loose particles through the false bottom, said drum having a spider on one end thereof, and said means including a tube on which said spider is loosely mounted, and an air-ductin said spider communicating with the interior of said 115 pan and tube.

16. The combination with an oscillatable transfer drum, of a pan slidably mounted in said drum and provided with a reticulated false bottom, and suction means communicating with the interior of the pan below the false bottom to suck dust and loose particles through the false bottom, said drum having a spider on one end thereof, and said means including a tube on which said spider is loosely mounted and an air-duct in 125 said spider communicating with the interior of the pan below the false bottom, said tube having a circumferential slot arranged to register with said air-duct.

JAMES P. DURNING. 

